Speeding up MIDI on Concertina.net
I don’t know if this has been posted before but you can alter the tempo on ABC MIDI files on Concertina.net using the "Q" line.
Just add Q into it’s own line followed by a number where as 150 is slow and 300 is quick and so on.
Copy and paste this example:
T: Earl’s Chair, The
B2 dB BAFA|B2 dB BAFB|AF (3FFF DF (3FFF|AFdB ADFA|
B2 dB BAFA|B2 dB BAFB|A3 B defd|1 edef d3 A:|2 edef d3 f||
e2 ef d2 df|edef dB A2|e2 ef dcde|fedB ADFA|
e2 ef dB (3BBB|gB (3BBB defg|afbf afeg|fedB ADFA:|
As you can see you can change the number after Q to suit your own needs and also this might work on other ABC MIDI converters too.